Globally, traditional power systems are rapidly transforming towards the adoption of smart grid platforms. Substations which are at the center of the electric power transformation from the power plant are changing to ...Globally, traditional power systems are rapidly transforming towards the adoption of smart grid platforms. Substations which are at the center of the electric power transformation from the power plant are changing to IEC 61850 based digital substations. Therefore, within substation, there is a growing demand for the IEC 61850 based Intelligent Electronic Devices (IEDs). The operation of multiple manufacturers of IEDs in a single digital substation network increases the need for IEC 61850 communications specification conformance diagnosis to ensure interoperability for efficient data exchange between IEDs. The IEC 61850-10 presents test items for diagnosing communication specification conformance. There are many test tools available in the market today to test the compliance of the IEC 61850 communications specifications to the IED. In this paper, we propose a model-based diagnostic method for IED communication conformance testing. The proposed model-based software therefore uses the “drag and drop” technique to select the various IEC 61850 communication services (objects) required to design the test case in a user friendly Graphical User Interface (GUI). This makes the service conformance testing more flexible for test engineers and system integrators especially in situations that require test case modifications. Also, the proposed software tool makes it easy to understand the various IEC 61850 services using the friendly GUI.展开更多
介绍了一个基于client/sever结构,前端应用程序使用DELPHI 5.0作为开发工具,后台使用Microsoft SQL SERVER 7.0作为数据库支持的教师评测软件系统的设计与实现方法。通过对教师自评、专家评价和学生评价的评价数据采集、模糊评测分析...介绍了一个基于client/sever结构,前端应用程序使用DELPHI 5.0作为开发工具,后台使用Microsoft SQL SERVER 7.0作为数据库支持的教师评测软件系统的设计与实现方法。通过对教师自评、专家评价和学生评价的评价数据采集、模糊评测分析和统计,实现了对教师教学工作的全面、准确、科学的评价,同时该系统还具备教师信息查询、打印、数据库维护等功能,实现教师信息管理的无纸化办公。展开更多
文摘Globally, traditional power systems are rapidly transforming towards the adoption of smart grid platforms. Substations which are at the center of the electric power transformation from the power plant are changing to IEC 61850 based digital substations. Therefore, within substation, there is a growing demand for the IEC 61850 based Intelligent Electronic Devices (IEDs). The operation of multiple manufacturers of IEDs in a single digital substation network increases the need for IEC 61850 communications specification conformance diagnosis to ensure interoperability for efficient data exchange between IEDs. The IEC 61850-10 presents test items for diagnosing communication specification conformance. There are many test tools available in the market today to test the compliance of the IEC 61850 communications specifications to the IED. In this paper, we propose a model-based diagnostic method for IED communication conformance testing. The proposed model-based software therefore uses the “drag and drop” technique to select the various IEC 61850 communication services (objects) required to design the test case in a user friendly Graphical User Interface (GUI). This makes the service conformance testing more flexible for test engineers and system integrators especially in situations that require test case modifications. Also, the proposed software tool makes it easy to understand the various IEC 61850 services using the friendly GUI.
文摘介绍了一个基于client/sever结构,前端应用程序使用DELPHI 5.0作为开发工具,后台使用Microsoft SQL SERVER 7.0作为数据库支持的教师评测软件系统的设计与实现方法。通过对教师自评、专家评价和学生评价的评价数据采集、模糊评测分析和统计,实现了对教师教学工作的全面、准确、科学的评价,同时该系统还具备教师信息查询、打印、数据库维护等功能,实现教师信息管理的无纸化办公。
